Boulder County property record for 637 2nd Ave, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1984 |
| Square Footage | 2,098 sqft Living Area |
| Lot Size | 6,442 sqft (0.148 acres) |
| Garage | Detached, 520 sqft |
| Last Sale | $340,400 (2004) |
| Tax Bill | $5,869.00 (2025) |
Source: Boulder County records · APN 1203-18-4-10-018
Assessment roll updated June 15, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 1421, LYONS, CO 80540-1421 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 07, 2004 · Amount on Record |
| Deed Sale | Sep 07, 2004 · Amount on Record |
| Prior Sale | Jun 27, 2000 · Amount on Record |
| Deed Doc Number | 20042624852 |
| Record Refreshed | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Lyons Town |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $46,934 (+8.8%) Land $4,386 Building $42,548 | $690,200 (-) Land $64,500 Building $625,700 | |
| 2025 | $5,869.00 (+12.35%) | $43,137 (-10.54%) Land $4,031 Building $39,106 | $690,200 (-4.1%) Land $64,500 Building $625,700 |
| 2023 | $5,224.00 (+13.39%) | $48,220 (+29.03%) Land $3,745 Building $44,475 | $719,700 (+33.85%) Land $55,900 Building $663,800 |
| 2022 | $4,607.00 | $37,370 Land $3,426 Building $33,944 | $537,700 Land $49,300 Building $488,400 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | High above 73% of the US · above 71% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 358 per year |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: NPS National Register of Historic Places · August 1, 2026 release · Last verified: October 2026
| Historic District | Within the Lyons Sandstone Buildings listed 1980 · 13 contributing resources · NRIS 80000880 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
| Primary APN | 1203-18-4-10-018 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Building Area | 2,098 sqft Living Area |
| 1st Floor | 1,346 sqft 1st Floor |
| Upper Floors | 752 sqft Upper Floors |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | A-Frame Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Lot Area | 6,442 sqft (0.148 acres) |
| Garage Type | Detached Garage |
| Garage Area | 520 sqft Garage |
| Deck Area | 259 sqft Deck |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0068218 |
|---|---|
| Street Address | 637 2ND AVE |
| City | LYONS |
| State | CO |
| Zip | 80540-5065 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | S 1/2 LOTS 1 & 2 BLK 16 LYONS |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | LYONS - LY |
| Legal Block | 16 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 3 |
| Census Block | 3007 |
| Census Tract | 13601 |
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